enh(admin_manual): update OPcache JIT docs #12284
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Single Nextcloud instances have shown to use less than 2 MiB of the configured JIT buffer size, so that 8 MiB is sufficient by a large margin. Using any larger value pre-occupies the `opcache.memory_consumption` accurdingly and 128 MiB would hence fill its default 128 MiB completely, without any benefit. The example JIT size is hence reduced to 8 MiB. Enabling JIT however has shown to raise overall OPcache usage by a larger amount than the configured JIT size, so that `opcache.memory_consumption` might still need to be raised in some cases. This information is added to the documentation: nextcloud/all-in-one#2755 (comment) Additionally, the info is added that JIT is currently supported on x86 platforms only. Signed-off-by: MichaIng <micha@dietpi.com>
Single Nextcloud instances have shown to use less than 2 MiB of the configured JIT buffer size, so that 8 MiB is sufficient by a large margin. Using any larger value pre-occupies the
opcache.memory_consumptionaccurdingly and 128 MiB would hence fill its default 128 MiB completely, without any benefit.The example JIT size is hence reduced to 8 MiB. Enabling JIT however has shown to raise overall OPcache usage by a larger amount than the configured JIT size, so that
opcache.memory_consumptionmight still need to be raised in some cases. This information is added to the documentation: nextcloud/all-in-one#2755 (comment)Additionally, the info is added that JIT is currently supported on x86 platforms only.
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